Sexual Orientation, Sex Life, and Elena Kagan

Glenn Greenwald wrote the following today:

Perhaps it's naïveté, but I've been amazed by the outraged objections of many Good Liberals to the mere discussion of Elena Kagan's sexual orientation. Without realizing it, they've completely internalized one of the most pernicious myths long used to demand that gay people remain in the closet: namely, that to reveal one's sexual orientation is to divulge one's "sex life."

Well, he's got it part right, and part wrong. He explains: